1,000,000 km, what is the concept? It is a full 25 times that of the equator of the earth at 40,000 kilometers, and a full 250 times that of the eight thousand miles in the phrase "I love you, like the wind has traveled eight thousand miles, regardless of the return date." It is also the design service life of Changan UNI-V from the beginning of the design.
It should be known that the design service life of the general joint venture model is 10-15 years, according to the normal driving mileage of 15,000-20,000 kilometers a year, it is almost 300,000 kilometers of design service life, and the design service life of Changan UNI-V is three times that of them, even far beyond the mandatory standard of 600,000 kilometers of scrapping required by the previous national standard.
1 million kilometers of design life test "torture", thousands of hammers and hammers only for high quality
The new UNI-V mentioned by every consumer is verified by thousands of years of quality verification, there are laboratory durability tests, there are also real verification of real cars, only such a round of quality verification, in order to ensure that the quality of new cars delivered to the hands of users is guaranteed, Changan UNI-V is so, every responsible car company is so.
In the laboratory endurance test, the most typical is the vehicle 24 channel endurance test. Engineers fixed the "four legs" of UNI-V to the professional equipment of "turn hub", which can make the car run at the designed speed, while the four footholds are impacted by 6 degrees of freedom to impact the four-wheel suspension, and the UNI-V is forced in 24 directions to reproduce various proving ground pavements, driving maneuvers and events.
In this experiment, UNI-V needs to go through 3 rounds of 24 tests, each round of 200 hours, simulating more than 55 kinds of road condition tests, to test the durability and reliability of the vehicle and various components.
In addition, the high and low temperature test chamber is also an important part of many indoor tests, which can fully test whether the vehicle and its parts, interior and exterior decorations are deformed or functionally affected under extreme temperature conditions, and whether they can operate normally:
For example, whether the car can be started under the condition of -40 °C, whether the central control system can operate normally, whether the parts will crack, embrittle, etc.; whether the electronic circuit will fail at 80 °C, whether the interior and exterior decoration will fade and age, etc., which are closely related to the user's daily use of the car.
UNI-V in the formal test stage to go through dozens of different test purposes of high and low temperature tests, each test at least 720 minutes, all the tests have been done for more than 700 hours, the more comprehensive the test, for consumers, the more trustworthy the quality of the new car.
Of course, the "rough" bench test is only one part of many durability and reliability tests. Whether a car can withstand the test of actual use of the car still needs to go through the actual combat experience of the "devil".
From the extreme cold challenge of China's cold desert river at -40 °C to the Siberian show "Ice and Snow Ballet" at -50 °C; from the summer high temperature training in China's hot pole Turpan with a temperature of nearly 50 °C, to the Saudi Arabian "running marathon" with a temperature difference of nearly 50 °C in summer; from the "fancy sauna" in Sanya where the humid and sweltering sun shines directly, to the conquest of the Qinghai-Tibet Plateau at an altitude of 4700 meters...
Changan's global verification system, no matter the southeast and northwest, no matter the high cold, high heat, high humidity, high pressure and other extreme environments, the vehicle can withstand the verification.
Global Simulation Database Simulation, 0.001 refinement only for more reliable
The reliable vehicle quality stems from Changan UNI-V's strict requirements for every part.
In fact, every part of Changan, in the initial design stage, takes into account fatigue strength, wear resistance and so on. The durable and reliable quality experience of UNI-V was not opened from the road test of the whole vehicle, and began to undergo thousands of hammers and hammers as early as the beginning of research and development.
A simple example: pistons.
The piston is known as the "labor model" in the engine, the main role is to withstand the combustion pressure in the cylinder, and this force is transmitted to the crankshaft through the piston pin and connecting rod, it is always facing the hot temper of air molecules and oil molecules, and the thermal stress sometimes even reaches 300 ° C, which can be described as a small body to work hard to resist everything.
Therefore, engineers made full use of Changan's global simulation database at the beginning of research and development to design the safety factor of the piston within an accurate and reasonable range.
And through CAE simulation, the magic "jump" hundreds of millions of cycles, after analyzing the data, engineers will correct the design parameters for each 0.001mm variance that appears, and achieve refinement.
In fact, from 1 piston, to more than 500 parts brothers in the engine, to more than 10,000 parts of the whole vehicle, they will "move" together. In the world of CAE, iterative, corrected, and accumulated dozens of trillions of simulations to achieve reliable and durable life goals.
The 0.001 refinement is only for more reliable, and the Blue Whale 1.5T engine on the UNI-V has also previously undergone a full-speed full-load durability test of 5500 rpm, and set a Guinness record of not turning off the engine for 259 hours, 46 minutes and 25 seconds.
In fact, such a perverted test is only an ordinary one of the more than 30 special tests of the Blue Whale engine.
As Li Xian, chief designer of Changan Automobile Blue Whale Power NE platform, said, although we verify the reliability of Changan Automobile with limits and harsh working conditions, there is no limit to our pursuit of quality.
Write at the end:
Based on the Ark architecture, the A+ class five-door hatchback coupe, the value of Changan UNI-V is far more than the elegant dynamic appearance design we see, the abundant motion potential brought by the special blue whale power + DTV dynamic torque vector control and so on.
In terms of invisible durability quality, Changan UNI-V also has a continuous improvement of 0.001mm, with a design life of 1 million kilometers. As the top stream of the Chinese system, Changan UNI-V is not only technology, but also durable quality can withstand the test of users.